Linked Life Data

3027725

Source:http://linkedlifedata.com/resource/pubmed/id/3027725

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1987-3-10
pubmed:abstractText
Plasmid pU21, which carries the reaction center and light-harvesting genes (puf operon) of Rhodopseudomonas capsulata, has been redesigned by site-specific mutagenesis. Five restriction sites have been removed and three unique restriction sites have been introduced into this 11,589-bp pBR322 derivative. The modifications divide the puf structural genes into four regions separated by five unique and nonmutagenic restriction sites. These four fragments have been subcloned into the M13-mp series of vectors to facilitate oligonucleotide-mediated site-specific mutagenesis experiments on the photosynthetic apparatus structural genes. The inserts can then be returned from the M13 replicative form to the redesigned pU21 derivative. The modified plasmid, pU29, greatly facilitates in vitro mutagenesis experiments since previously described techniques and screening procedures are more efficient with M13 derivatives carrying smaller inserts. Additionally, tandem homologous sequences (the reaction center L and M subunits) within the puf operon are now separated on different phage vectors, eliminating problems encountered in the targeting of mutagenic oligonucleotides to only one of the two homologous sites.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0147-619X
pubmed:author
pubmed:issnType
Print
pubmed:volume
16
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
175-81
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1986
pubmed:articleTitle
Plasmid pU29, a vehicle for mutagenesis of the photosynthetic puf operon in Rhodopseudomonas capsulata.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't